Not near as often as it needs it... but I generally do one fixture at a time, which makes everything easier. Floor gets mopped with the other hard floors, not as part of a bathroom cleaning expedition. The outside of the bowl and tub pretty much only get cleaned when we're expecting company

Helpful hint: citric acid! Love the stuff. Mix strong and spray on, let it soak for 15 minutes or so. Takes off soap scum, hard water spots, etc. with hardly any scrubbing (well, depending on how much buildup there is ). You can buy large containers of crystalline citric acid very cheaply where you get canning or beer and wine making supplies. Most household cleaners are just food grade acids mixed with a bunch of unnecessary (toxic petroleum based) ingredients anyhow. Mix with a little Dr. Bronner's for a surfactant effect, but if you do that, be sure to rinse the tub thoroughly since it will be slippery.